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Quantum-fluctuation-induced spatial stochastic resonance at zero temperature.

P Sen1

  • 1Department of Physics, University of Calcutta, 92 APC Road, Calcutta 700 009, India. paro@cucc.ernet.in

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
|April 20, 2001
PubMed
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Quantum fluctuations can be controlled, leading to spatial stochastic resonance in a system subjected to periodic fields at zero temperature. This research explores purely quantum fluctuations driving resonance phenomena.

Area of Science:

  • Quantum physics
  • Statistical mechanics

Background:

  • Stochastic resonance is typically observed in classical systems.
  • Quantum fluctuations are usually considered noise and detrimental to signal processing.

Purpose of the Study:

  • To investigate the phenomenon of spatial stochastic resonance.
  • To explore the role of controllable quantum fluctuations in driving resonance.

Main Methods:

  • Modeling a system with controllable quantum fluctuations.
  • Applying a spatially periodic external field at zero temperature.

Main Results:

  • Demonstrated system response to the external field.
  • Observed spatial stochastic resonance driven by quantum fluctuations.

Related Experiment Videos

  • Characterized various features of this quantum phenomenon.

    • Conclusions:

    • Quantum fluctuations can be harnessed to induce spatial stochastic resonance.
    • This work extends the concept of stochastic resonance into the quantum realm.